Access and Use
Donated by D. N. Diedrich, 1985-2009. M-2211, M-2258, M-2321, M-2376, M-2443g, M-2710g, M-3093, M-3198.5, M-3222.3, M-3222.4, M-3222.5, M-3222.6, M-3222.7, M-3246, M-3396.2, M-3396.3, M-4191.5, M-4600.10, M-4782.3.
The collection is open for research.
Copyright status is unknown.
Horace Mann Papers, Duane Norman Diedrich Collection, William L. Clements Library, The University of Michigan.